Here are a few options for a formal title, depending on your focus:
Option 1 (Concise and Authoritative):
Global Financial Markets: Comprehensive Updates on Economy, Indices, and IPOs
Option 2 (Comprehensive):
Financial and Economic Briefing: Market Trends, Indices, and IPO Developments
Option 3 (Professional/News-focused):
Market Intelligence: Global Economic Insights and Live Equity Updates
Recommendation: Option 1 is the most professional and covers all the areas mentioned in your original title while maintaining a clean, formal structure.